package com.hmdp.service.impl;

import cn.hutool.json.JSONUtil;
import com.hmdp.dto.Result;
import com.hmdp.entity.ShopType;
import com.hmdp.mapper.ShopTypeMapper;
import com.hmdp.service.IShopTypeService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.ArrayList;
import java.util.List;

/**
 * <p>
 *  服务实现类
 * </p>
 *
 * @author 虎哥
 * @since 2021-12-22
 */
@Service
public class ShopTypeServiceImpl extends ServiceImpl<ShopTypeMapper, ShopType> implements IShopTypeService {
    @Resource
    private StringRedisTemplate stringRedisTemplate;
    @Override
    public Result queryTypeList() {
        List<String> typeList=stringRedisTemplate.opsForList().range("cache:shop:type",0,-1);
        if (typeList != null && !typeList.isEmpty()) {
            List<ShopType> shopTypeList = new ArrayList<>();
            for (String type : typeList) {
                ShopType shopType = JSONUtil.toBean(type, ShopType.class);
                shopTypeList.add(shopType);
            }
            return Result.ok(shopTypeList);
        }
        List<ShopType> shopTypes = query().orderByAsc("sort").list();
        if (shopTypes.isEmpty()){
            return Result.fail("未查询到数据");
        }
        shopTypes.forEach(shopType -> {
            stringRedisTemplate.opsForList().rightPush("cache:shop:type",JSONUtil.toJsonStr(shopType));
        });
        return Result.ok(shopTypes);
    }
}
